// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --verify-heap

class Array1 extends Array {
  constructor(len) {
    super(1);
  }
}

class MyArray extends Array {
  static get [Symbol.species]() {
    return Array1;
  }
}

let a = new MyArray();

for (var i = 0; i < 100000; i++) {
  a.push(1);
}

a.map(function (x) {
  return 42;
});
